Bert,
It sounds like Rek and you are in conversation, but I wouldn't be me if I couldn't keep my mouth shut...
I don't think this one is black and white. I agree that it isn't particularly constructive to post competing offers on indivual goods being sold. However, it is not out of line for Rek to question a product being sold by a vendor. I can buy a CSL style valance from Coupe King, Zaprace, Coupe Guy, or VSR1. It is not unreasonable for a myself or another member to publicly or privately question the difference in price and quality of said item if the Vendor is advertising here (for free I might add). In this case, like it or not you are a vendor. Let's be honest - you aren't selling personal e9-specific parts and you don't happen to have an old fire extinquisher that you no longer need. You are sourcing these things in Europe and selling them at a profit, as a service to members. You have already established yourself as a vendor selling fabricated parts as well. There is certainly nothing wrong with that, I do the same (well I'm trying anyway).
Members are paying a convenience tax for a mildly functional eye-candy item. One can buy a functionally equivilent extinquisher at Walmart for $20. Rek asked a straight forward question- "Is the part the same?". Clearly the UK extinquishers are not the same. It is understood that one is paying a premium not only for the BMW logo, but to ship a pressurized device to AZ, then out to the buyer's address. If an internet savvy member wants to hunt around Europe for one of these at wholesale and convince the seller to deliver stateside via cargo ship, more power to them. Until then, keep on trucking